The Radiator Vent Key Switch is a must-have for anyone with heating radiators. Its wide compatibility ensures that it can be used with any radiator brand and model, making it a versatile choice, it is built to last and withstand regular use. Its multi-functionality allows for easy venting, and switching operations. Features -Color:Silver -Material:Aluminum alloy -Size:2.30X2.20X0.90cm/0.90X0.86X0.35in -Note:one for side length 5mm, another for side length larger than 5.5mm -This accessory is designed to fit all radiator brands and models, making it a versatile option for any home or office. -Installation and maintenance are easy, ensuring that you can quickly and efficiently make any necessary adjustments. -The materials used in construction ensure that this accessory is and dependable, providing you with peace of mind and performance. -With its multifunctional design, this accessory can be used for venting, and switching operations, making it addition to any heating system. -Despite its many features and benefits, this accessory is option for any homeowner or business owner. Package list: 2 x Radiator Bleeding Keys(2 styles)